I updated my endeavouros installation today. It first failed, because I have an NVIDIA Graphics card and I had to reinstall the Linux firmware.
Then I rebooted and since then my system is stuck on boot, without getting to the grub menu at all.
I tried pressing (and holding for like a minute) Escape or shift after boot for several times and nothing opened. Every f“x“ button for the BIOS is also not working. The keyboard on my laptop not even reacts when I am pressing the numpad button (usually there is a light on or off after I press it)
I updated the system after months, so it could be that I messed that one up (idk if that does something, I usually had no problems with updating only after weeks and months)